PT - JOURNAL ARTICLE ED - , TI - Calendar DP - 1977 Dec 01 TA - Journal of Nuclear Medicine PG - 1286--1288 VI - 18 IP - 12 4099 - http://jnm.snmjournals.org/content/18/12/1286.short 4100 - http://jnm.snmjournals.org/content/18/12/1286.full SO - J Nucl Med1977 Dec 01; 18